constraint errors on composer update and install!

[NukeSheriff]

Problem 1
- metasyntactical/composer-plugin-license-check is locked to version v0.5.0 and an update of this package was not requested.
- metasyntactical/composer-plugin-license-check v0.5.0 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.2.0] but it does not match the constraint.
Problem 2
- wikimedia/composer-merge-plugin is locked to version v1.4.1 and an update of this package was not requested.
- wikimedia/composer-merge-plugin v1.4.1 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.2.0] but it does not match the constraint.

[Blitheness]

You're using composer 2. Vanilla for some reason won't upgrade from Composer 1.

Solution: use composer v1

[ernestbuffington]

Composer 1 is being retired, just got off the phone with chad.

[ernestbuffington]

You can use both versions of the composer if you set up your server to do so but most folks are not going to do that. It's sad because I really dig the vanilla forum.